Stability improvement of the ZnO nanowire array electrode modified with Al2O3 and SiO2 for dye-sensitized solar cells

被引：18

作者：

Qin, Zi ^{[1
]}

Huang, Yunhua ^{[1
]}

Liao, Qingliang ^{[1
]}

Zhang, Zheng ^{[1
]}

Zhang, Xiaohui ^{[1
]}

Zhang, Yue ^{[1
,2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Key Lab New Energy Mat & Technol, Beijing 100083, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 70卷

关键词：

Semiconductors; Nanocrystalline materials; Solar energy materials; Nanostructures; DECREASING GRAIN-SIZE; SURFACE MODIFICATION; PERFORMANCE; SOLUBILITY; EFFICIENCY; INCREASE;

D O I：

10.1016/j.matlet.2011.12.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The surface destruction of the ZnO nanowire arrays that occurred in the sensitization process causes extreme decreases of the conversion efficiencies. In order to solve this problem, Al2O3 and SiO2 layers are coated onto the surface of the ZnO nanowire arrays by spin-coating method, used as protection layers around the ZnO nanowire arrays. The roles of both types of layers have been investigated and discussed. The experimental results indicate that the surface modification with Al2O3 and SiO2 nanoparticle layers can suppress the surface destruction, enhance the acid stability of ZnO nanowire array electrode, and slow down the decreasing rate of the conversion efficiencies. (C) 2011 Elsevier B.V. All rights reserved.

引用

收藏

页码：177 / 180

页数：4

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